Hello everyone !
We are books publishers and produce our own covers using Affinity Publisher for 6+ years. Unfortunately, we just have met our first big issue with a picture that was printed too dark.
The printer guy told us that the cumulative CMYK colorimetry was greater than 300%, which is certainly true, but all the tools we used to check that (Krita and Scribus for instance) returned a lower value.
In parallel, we have tried to export the cover using 2 different ICC profiles (Uncoated FOGRA29 (too dark) and Coated FOGRA39 (much better)). The issue is that we do not know how to check if the colorimetry is correct, as we do not even know how to verify this with the original cover.
I have not found how to get the CMYK percentages, globally or per channel.
Of course, we would not jump for joy if we had to subscribe to a very expensive Adobe add-on...
Each and every advices will be warm-welcome !
Many thanks by advanced.
B.R.
Eric DJ